Improved king-bolt for rail wat-car trucks



J. M; BUCKLIN.

Car Truck.

Patented Dec. 28, 1869.

' must be draivn upward, in order to disconnect.

titul %states Letters Patent No.-98,344, dated December 28, 1869.

IMPROVED KING-BONI' F OR RAILWAY-CAR TUCKS.

The Schedule :efe ''ed to in these Letters Patent and making part of thesame.

To all whom it may conoern:

Be it known thfat I, JAMES M. BUKLIN, of St.

Louis, in the county of St. Louis, and State of Missouri, have inventeda new and valuable Improvement in IKing-Bolts; and I do hereby declarethat the following is a full, clear, and exact description of' theconstruction and operation of the same, reference being had to theannexed drawings, making' a -part of this specilication, and to theletters and fignresof reference marked thereon.

Figure 1, of the drawings, is a top view of my invention. i

Fgure 2 is a central vertical section of same.

Figures 3 and 4 are details.

Figures 5 and 6 are modifications of bolt.

My invention relates to the mode of connectiug the trucks torailroad-cars, and consists, mainly, in the construction and novelarangement of devices, whereby the head of the king-bolt is made to reston the transoin, and the disconnection is made by dropping the boltthrough the transon.

' -The objections to the king-bolt now in use are serious. This boltrests upon the floor of the car, 'and Gonsequently the' car, if afreight-car, and loaded, must be nnloaded, or the freight shifted, inorder to get at the head of the bolt. i

if, by any accident, the lower part' of the bolt is bent, it isclenched, and cannot bedrawn out through the centre bearings.

It frequently happens, both on the road and in the shops, that thetrucks of both passenger and freightca's cannot *be changed withoutlifting the body of Ithe 'car high enough to clear the end of thekingolt.

These, and many other difliculties are all obviated in the king-bolt'which I have designed, as will bemade evident by the followingdescription.

The letter A of the drawings designates the transom;

B, the bolster of the truck; and

c, its centre bcaring-plate.

a designates the head-plate, attached to the top o" the t'anson by fourbolts and nuts, which also secure the centre plate g under the transom.

The head-plate a is formed with an oblong slot through it. i

This slot, which is let-tered e in the drawings, extends entirelythrough the transom and its 'under bearing-plate. i

- A transverse shallow cavity, i, is fonned at the commencement of theslot e in the head-plate, of sufiicient depth to contain the'oblongsolid head of the kingbolt z.

n designates a cover, made to slide in a'dovetail groove formed in thetop of the head-block.

This cover prevents the king-bolt from j unping, and therebybeeomingdisarranged.

Instead of the solid oblong-headed bolt just described, I sometimes makeuse of the bolt now employed, by cutting off its round head, and:substitnting therefor the key and 'round Washer, 'or the collar, washer,and split pin, passingthrough bolt and collar. v e

When it is required to release the bolt z from the body of the car, anddetach the truck, the head of the bolt is raised above the cavity i, andturned one quarter around, until it drops into the slot a, and e throughthe transom, until it, rests upon the centre hearing c.

When the key-headed bolt or collar-headed bolt,

above described, is cmployed, no lead-plate is neces- I sary. V

In my improvement, the bolt being easily accessible outside the car, nodelay can occnr in disconnecting,

as there is nothing to prevent the bolt from being dropped down throughthe transom at pleasure.

Over Seven pounds of iron may be saved in each bolt, in consequence ofits shortness, as coupared with the bolt now employed, which is designedto extend,

from the car-floor through the transon, and through the bolster of thetruck.

The slot e is arranged so that its sides are cut by central circulargrooves, to fit the cyliudrical shank ot' the king-bolt,*and keep it inthe centre of the slot.

79 designates a set-screw, arranged to fasten the cover q in place.,

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The king-bolt z, arranged to' rest immediately ou nesses.

I JAMES M. BUGKLIN,

witnesses:

HENRY H. MATHIAS,

- JOHN B sBY.

a railroad-

